FFDSHOW is an open source DirectShow decoding filter designed to decompress many formats, some of which include XviD, Windows Media Video (WMV), DivX and MPEG-1/MPEG-2. by FFDSHOW (All in one codec) | 2.3Mb | For Windows 7 / Vista / XP / 2000 / ME(Free)
Professional-quality MPEG-2 I-frame software-only Video for Windows codec can be used with a wide range of applications. by Etymonix Inc. | 0.79 MB | For Windows 7 / Vista / XP / NT(Shareware)
The addZIP Compression Components are the simplest way to add the industry-standard PKZIP compatible file compression and decompression to your programs. by littleBIGware | 1.13 MB | For Windows 7 / Vista / XP / NT(Shareware)
NTFS offers file based compression but the compression rate isn't displayed anywhere. by JAM Software GmbH | 0.92 MB | For Windows 7 (64-bit, 32-bit) / Vista / XP(Free)
Open Freely is a versatile universal all-in-one PC utility for opening and editing a growing list of file types. by Download Freely, LLC | 29.5 MB | For Windows 7 (64-bit, 32-bit) / Vista / XP(Free)